74HC138PW

@@ -0,0 +1,57 @@+# 74HC138PW++**Nexperia** · Signal Switches / Encoders & Decoders / Multiplexers · TSSOP-16++74HC138PW from Nexperia, in a TSSOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | A0 | input | Address input 0 (LSB). Binary-weighted select input to the 3-to-8 decoder. |+| 2 | A1 | input | Address input 1. Binary-weighted select input to the 3-to-8 decoder. |+| 3 | A2 | input | Address input 2 (MSB). Binary-weighted select input to the 3-to-8 decoder. |+| 4 | E1 | input | Enable input 1, active LOW. All outputs are forced HIGH when E1 is HIGH. |+| 5 | E2 | input | Enable input 2, active LOW. All outputs are forced HIGH when E2 is HIGH. |+| 6 | E3 | input | Enable input 3, active HIGH. All outputs are forced HIGH when E3 is LOW. |+| 7 | Y7 | output | Decoded output 7, active LOW. Asserts LOW when A2:A0 = 111 and all enables are active. |+| 8 | GND | power_in | Ground reference (0 V). |+| 9 | Y6 | output | Decoded output 6, active LOW. Asserts LOW when A2:A0 = 110 and all enables are active. |+| 10 | Y5 | output | Decoded output 5, active LOW. Asserts LOW when A2:A0 = 101 and all enables are active. |+| 11 | Y4 | output | Decoded output 4, active LOW. Asserts LOW when A2:A0 = 100 and all enables are active. |+| 12 | Y3 | output | Decoded output 3, active LOW. Asserts LOW when A2:A0 = 011 and all enables are active. |+| 13 | Y2 | output | Decoded output 2, active LOW. Asserts LOW when A2:A0 = 010 and all enables are active. |+| 14 | Y1 | output | Decoded output 1, active LOW. Asserts LOW when A2:A0 = 001 and all enables are active. |+| 15 | Y0 | output | Decoded output 0, active LOW. Asserts LOW when A2:A0 = 000 and all enables are active. |+| 16 | VCC | power_in | Supply voltage, 2.0 V to 6.0 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Nexperia |+| Package | TSSOP-16 |+| Category | Logic |+| Pins | 16 |++## Ordering variants++- `74HC138PWPW`+- `74HC138PWD`+- `74HC138PWBQ`++## CAD (KiCad official)++- Symbol: `74HC138PW`+- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`+- 3D model: TSSOP-16 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Nexperia datasheet](https://assets.nexperia.com/documents/data-sheet/74HC138PW.pdf) (15 pp, sha256 `645120bc441507e9`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/74hc138pw-datasheet.pdf)

@@ -0,0 +1,34 @@+{+  "slug": "74hc138pw",+  "version": "0.1.0",+  "type": "component",+  "description": "Nexperia Signal Switches / Encoders & Decoders / Multiplexers, TSSOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.",+  "tags": [+    "component",+    "logic",+    "74hc138pw"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "74hc138pw.kicad_sym",+    "74hc138pw.kicad_mod",+    "74hc138pw.glb",+    "74hc138pw.step",+    "74hc138pw.lbr",+    "docs/hero.png",+    "docs/74hc138pw-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file